/*
 * ====================================================================
 * Copyright (C) 2013 Eric Blond
 *
 * This file is part of Neptune.
 *
 * Neptune is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Neptune is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Neptune.  If not, see <http://www.gnu.org/licenses/>.
 * ====================================================================
 */

package com.hyperplan.neptune;

import java.nio.file.InvalidPathException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public class Environment {

	public static final String ROOTS_ENV = "NEPTUNE_ROOTS";
	public static final int VERSION_MAJOR = 0;
	public static final int VERSION_MINOR = 1;
	
	public static List<Path> getRootPaths() throws InvalidPathException {
		String content = System.getenv(ROOTS_ENV);
		if (content != null) {
			List<Path> result = new ArrayList<Path>();
			for (String part : content.split(";")) {
				result.add(Paths.get(part).normalize());
			}
			return result;
		} else {
			return null;
		}
	}
}
